31373935blue pigmentPT2026-03-30 20:40:50UF31373936blue pigmentsNDUF31373937pigment, blueNDBT31343659pigment by colorPTNT31411016inorganic blue pigmentPTNT31411019organic blue pigmentPTNT31411022synthetic inorganic blue pigmentPTNT31411026synthetic organic blue pigmentPTNT31411030new bluePTNT31411032Payne's grayPT